Mold for producing molded stone slabs



March 30 1926.

. C. BETTERMANN low FOR PRODUCING momma sronz sums c em Patented Mar. 30,1926.

4 UNITED-(STATES calm BETTERMANN, or HAGENQfGEItMA NY, ASSIGNOB some PATENT-PLATTENJ eussronm -vnmnm ne. M. B. 32,01 HAGEN, IN. WESTPHALIA, GERMANY tion.

Mom) ronrnonuome MOLDED: savour; stars. I

Application filed October 925; SerialaNo. 63,746.

To all whom it may concern:

Be it known that I, GARLQBETTERMANN, residing at Hagen, 1; vVestphalia, Germany,

a citizenof the Republic of Germany, have invented certain new and useful Improve! ments in Molds for Producing Molded Stone Slabs, of which the following is a specifica- This invention relates to box-like molds for the production of molded stone slabs with afiat Z-shaped cross section, and the object ofthe invention -is .to' enable'a large number 1 of such slabs to be produced simultaneously Q A denotes the base plate oi the box-like .Figure -1'is an end .-.is composed att ached by bolts a can be opened. by

a comb, Figure 3, a number of in asimple manner.

7 According to the inventiomthe mold has twoside walls situated opposite to one a'n- (other and carry ng pro ections arranged in the form of a comb and reaching from the base of the mold to its upper edge, said projections of the one side wall being staggered to those of theother side wall, the gaps between two adjacent projections on one side wall'being subdivided by transverse partitions which reach to the projections of the:

otherfside wall opposite said gaps. 1 In thedrawingz' V elevation of a mold for east slabs forming an; embodiment of the invention by way of examplefl Figure 2 is a side elevation thereof.

' Figure 8 is a ofthe mold.

Figure 4 isa crosssection ofa' wall which of the slabs 'produced in the casting mold shown injFiguresflto 3.v

casting mold to which hesidewalls B and the end walls; G of themold are pivotally walls B and O.

walls '13 are arranged after the manner of b ot'trapezoid cross section extending from the base up to the upper edge of the mold.

These projections are so arranged thateach gapbetweeniadjacentprojections b of one sidewall is opposite a projection onthe other side wall. Each such gap is subdivided by a transverse partition D loosely inserted into'the mold, Figure '3, and extending up to the, projection b on the other side wall opposite the gap, so

that a hollow space form of the flat Z- 4, to-be produced is of the cross sectional shaped slabs E, Figure A levers K, see particularly top plan partially in section V V I v a I of these lockinglevers is pivotally mounted and a so that the mold turning down the side On each of the two side;

projections 1 formed betweenevery two adjacent transverse partitions fl) and the parts of the projections b opposite to them. "Between each' end wall C and the adjacent partition Djthe hollow space on the. side ofthe gap which contains the transverse partition 1) "1901? the same width throughout, .so that'here a hollow space of the cross sectional form ot" an end slab E adaptedto limit a Waller side wall B is "attached a stifiene jbar b the ends b ilof which are bentoyer at right' angles'and} embrace the end wallsic claw fashionQsee particularly Figure 3. Each .ofi two end walls Q :carries a screw adj u stment device with a screw nutflH provided with a right and lefthan'ded screw thread, andis adapted to rotate on two spindles J which are guided longitudinally on the end wall C- and provided" with corresponding; screw 7 threads. The ends 71 of these spindles J are adapted to bear, against the, bars 6 To prevent the side and end walls 13 and .C from turningdown unintentionally -two. locking Figure 2, arejprovided on the out'sides of the walls B; Each on one of the end walls G by av-pin a. and

lever K catching by means ofla' groove see Figure 2,

the corresponding end'wallf and secured inposition byawlng nut c see particularly Figure 2. I When casting, in the position showninthe, drawing. After casting as soon as the stone slabshave hardened, the longitudinal bar F-isflifted oii and the. locking levers K after having been un locked are swung .upwards'about the axis of the pins 0 The two side walls B are then first turned down and thenthe end walls C now released from the claw-like ends 6 of thefbars. separately andwithout trouble. vIn the case of some materials it has been foundby experience that the parts" of theniold are Each slab'can then be removed slabs whenhhardened ad- 'here. fairly ,firmly to the walls ofthe mold surrounding them. In,this case after the locking levers K have been swung upwards 1:10

- slabs.

and before the bar F has been lifted ofi, the

sides B are forced uniformly apart through the medium oi the spindles J by turning the screw nuts H with the right and left-handed screw threads, whereby the projections Z2 become gradually loosened from the cast The slabs and the partitions are meanwhile heldin position by the bars F fixed to the side walls (1' After the sidc walls B have been turned down, the bars F 'areremoved and then the end walls G are also dropped 'down, t-hus exposing the cast slabs.

any impurities that may adhere to it, so that castings with a smooth external surface can be satisfactorily produced.

Claims. 7 g 7 v j 1, A mold for casting slabs of Z- shaped-cross section, comprisingv a' bottom plate, two end walls and two side walls fixed to said bottom plate, said side walls carrying inside each a series of projections arranged in a comb-like manner, the projections of one side wallbeing staggered relativelyto those of the other side wall, a'partition arranged in each gap existing between two, adjacent projections, said partitions extending from the base of the gaps up to'thecrests of the V projections of the other sidewall. V a

2A mold for casting slabs of flat; Z-

shaped cross section, comprising a bottom plate, two end walls and two side wallsv hinged to said bottom plate so as to be able to be swung down into the plane of the lat-' ter, said sidewalls carrying inside each a series of projections arranged in a comb-like manner, the projections of one, side wall being staggered relatively to those of the other side wall, a partition arranged in each gap existing between two adjacent projec- "tions, said partitions extending from, the

base of the gaps up to the crests of the projections of the other side wall,

3. A mold for toasting slabs of flat Z- shaped cross section, comprising bottom plate, two end walls and two side walls hinged to said bottom plate so as'to be able to be swung down into the plane of the latter, said side walls carrying inside each a series of projections arranged in a comb-like manner, the projections of one side wall being staggered relatively to those 01 the other side wall, a partition arranged in each gap existing between two adjacent projections, said partitions extending from the.

base of the gaps up to the crests of the pro- I jections of the other side wall, and easily detachable means for securing said side walls in operative posltlon.

4:. A mold for casting slabs of fiat Z- shaped cross section, comprising a'bottom plate, two end walls, and two .side walls hinged to saidbottom plate so as tobe able to be swung down into the plane QftllG lat "0 ter, said side walls carrying inside each a series of projections arranged in a comb-like manner, the projections of one side wall being staggered relatively to those ofthe other side Wall, a partition arranged in each gap existing between two adjacent projections, said partitions extending from the base of the gaps up to the crests of the projections'of the otherside wall, bars pivoted to one of the end walls and adapted to be put on the side walls taking their operative 7 position, and means for locking said bars in their operative position. v V

5. A mold for casting slabs of fiat 'Z- shaped cross section, comprising a bottom plate, two end walls and two side walls hinged to said bottom .plate so as ilO bQ able to be swung down into the plane of the latter, said side walls carrying inside each a series of projections arranged in comb-like manner, the projections of one side wall being stagger-ed relatively to those of the other sidewall, a partition arranged in each gap existing between two adjacent project-ions,

said partitions extending from the base of' the gaps up to the crests of the projections of the other side wall, easily detachable means for securing said side walls and said partitions in operative position. 1

6. A mold for casting slabs of flat Z- 9100 shaped cross section, comprising a bottom plate, two end walls and two side walls hinged to said'bottom plate so as to be able to be swung down into the plane of the latter, said side walls carrying inside each a seriesof projections arranged in a comb-like manner, the pro ections of one sidewall being staggered relatively to those of the other side wall, a partition arranged in eachgap existing between twov ad acent pro ections,

said partitions extendingfrom the base of the gaps up to the crests ofthe projections of the other sidewall, bars pivoted to one of the-end walls and adapted to be put on the side walls taking their operative posi- 'tion, locking means for said bars in their operative position, a bar extending from one end wall to the other in orderto lock said partitions 1n posltlon, and locks on said end walls for holding said last-named bar in locking position.

r. A mold for casting slabs of flat Z- shap ed cross section, comprising-a bottom plate, two end walls and two side walls hinged to said bottom plate so as to be able to be swung down into the plane of the latter, said side walls carrying inside each a series of projections arranged in a comb-like manner,the projections of one side wall being staggered relatively to those of the other tion, locking means for said bars in their operative position, a bar extending from one end wall to the other in order to lock said partitions in position, locks on said end walls for holding said last-named bar in looking position, and means for loosening said side walls from the adherent molded slabs.

8. A mold for casting slabs of flat Z shaped cross section, comprising a bottom plate, two end walls and two side walls hinged to said bOttOlll plate so as to be able to be swungdown into the plane of the latter, saidside walls carrying inside each a series of projections arranged in a comb-like manner, the projections of one sidewall being staggered relatively to those of theother side wall, a partition arranged in each gap existing between two adjacent projections,

[said partitions extending from the base or the gaps up to the crests of the projections of the other side wall, bars pivoted to one of the end walls and adapted to be put on the side walls taking their operative posi tion, locking means for said barsin their 7 operative position, a bar extending from one end-wan to'the other in order to lockzsaid partitions in position,1ocks on said end walls for holding, said last-named bar in looking position, an'oppositel-y threaded nut nioun'ted for rotation on each end'wall, a left-hand threaded and a right-hand threaded screw bolt engaged by said nut and adapted to nut being rotated.

move said side wallsout'wardly upon said i 9. YA. mold for castlngslabs of flat shaped cross seetion,-comprising a bottom plate, two end walls and two 1 side walls hinged to said bottom plate so as to be able v to be" swung down into the: plane of the latter, said side walls" carrying inside each a series of projections arranged in a comb-like manner, the projectionsiof one sidewall be I ing staggered relatively to those of the other side wall, a partition arranged in eaehgap existing between two adjacent projections, said partitions extending from the base of the gaps up to the crests of the projections of the other side wall, easily detachable ber,l925. r oa L BETTERMANNP u g means for looking said siderwalls and said g {partitions 1n operative-position, means for 

